Fort Worth daily gazette. (Fort Worth, Tex.) 1882-1891, 1887-10-27
plainly in the photograph, though not

tons recorded by the late DR.. Parrott Is
| the rapid growth Of the brain in the first
| half year OF life as compared with the in
crease in height and the growth Of
other organs. Taking the total growth
between birth snd six years of age Is 100,
the weight of the heart increases 1143 IN
girls and IL IS in boys during their first
| six months OF life; the height increases
20 in girls and ia in boys; while the
weight Of brain increases % II in girls
and 23.51 in boys.
Purifying river water by electricity is
an experiment made by Frenchman, NJ
StofeI. The gist of the process is that
the ozone generated by the electrOlytic
decomposition of the water kills the
organisms, and oxid.zes all organic sub
stances, at the same time precipitatiDg
the c7tDonates III course OF dissolution,
thus efTectually purifying the water. The
greatest drawback is the expense Of he
process, which amounts to l penny per
one cubic meter OF water, but NJ Stoffel
thinks this could be materially reduced
| By the sale CT the By products 0bt&iu&d
! in the process.
It is not to be assumed that the Eng
| lish ''lifts" are the equals Of the Aneri-
can elevators, but the use Of compresseC
cir fer operating them is sufficiently gen.
eral there to indicate that it may, TO 81
extent, take the place CT steam or water
here. In Liverpool, London and other
! ports the elevators IN the big warehouses;
are operated almost exclusively bg CON-
| pressed sir, which when exhausted into
various rooms of the buildings serves to
vend!ate and purify them. Another ed-
vantage claimed for compressed air is It's
great elasticity. The elevators run more
smoothly END stop and start less abrupt
| ", and are less liable to breakage When L
| quick stop is made than when water is
used.
Professor ". q. Anthony, speaking in
the American Association, Section of
| Physics, on the Importance CT teaching
physical science in the public schools,
said that proper scientific instruction in
J the primary schools would teach children
to avoid the mistake Of attempting the
impossible While grammar should be
put of to the last, language should
De taught by reading, not by
rules; the geography, after teaching
| the form of the earth, should be used
only as book of reference; and the
commercial departments of arithmetic
should be relegsted to the business
school; children in their earliest expert
ences have TO do with heat, light, sound,
movement and magnetism. Physics
should be taught by calling attention to
| familiar facts, and then explaining them.
Il Popular Science Monthly.
The process of making the wood carpet
now coming into common use Is COM
parAtively simple, although it must De
| cone with eXactitude. Carefully adjusted
saws strip the lumber into the desired
thickness and width, the latter differing
according TO tee work required. The
stuff is then subjected to the aaws that
cut it out in proper shape for in
laying, TO form the fabric and
figure OF the carpet. This must be
done With much particularly, Sc each OF
the mul5ii0Tm pieces must exactly fit.
The arrangement Of the pieces and the
giuing of them is done by lads, and locks
like slow work, but Yards are thus woven
with fair CELEBRITY. Canvas is glued on
oGe side 20 give strength 10 the fabric
The carpet IS then subjected TO sand
paper, and is finally finished with hard
oil.
An Austrian paper claims that the first
lightning-rod was constructed bys monk
N Bohemia. The apparatus which he set
up in the garden of the Curate of Prem
ditz in 1854 was composed OF pole sur.
mounted by an iron rod supporting twelve
curved-up branches, ard terminating II
as many metallic boxes, filed with iron
Gre and closed by lockwood cover
traversed by twenGy-seven sharI
iron points which plunged at theil
base in the ore. All the system
was Snited to the earth by large chain
The enemies Of Diwisch, jealous OF his
success at the Court OF Vienna, excited
the peasants of the locality against him
and under the pretext that it was the
cause of the great drouth they made hin
take down the lightning-rod which be
had utilized for SIX years. What is mos,
curious Is the form of this first lightning
rod, which was of multiple points Ike
the one which NJ. Nelson afterward in.
vented.
Professor r. W. Raymond gave TO Mrs
Ellen Richards Of the Massachusetts In
stitute Of Technology some somewha
broken specimens CT eriOgonum Ovalito
hum which he had exhibited to the in
stitute as plant growing in silver ORE
localities. Most OF them had rose-col.
ored blossoms. On one or two the
blossoms were yellow. Mrs. Richard:
has since reported the interesting results
of chemical analysis. In consequence Q
the views shove suggested as TO the pos
eibIe significance CT color, the pinl
lowered plants were treated sep
arately. The specimens were clean
ed as completely as possibl
,, from earth; but this separation could no
be made perfect. because the earth al
hered in PARTICLES to the woolly leaves
as was proved By the subsequent detec
ton In the ash of scales of bronze mica
The plant lost per cent. of moisture @
drying at 1862 c., and yielded II per cent
: of ash, of which 4 per cent. was solUbi
in acid. The presence Of arsenic Wa
quslitstively proved in the plant, and tn
I earth was found to contain consiGersbl
portion of it, but silver could not
found. In the plants WITH yellow flower
c arsenic was not found.
D Some idea OF the size of Krupp's bigges
gun may be gsined by description OF tn
means supplied for it's transportation
s The railway truck, built expressly for thi
OurpOse, was seVentV-fye feet long. wit